From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/net/ethernet/freescale/fs_enet/fs_enet.h | 241 +++++++++++++++++++++++ 1 file changed, 241 insertions(+) create mode 100644 drivers/net/ethernet/freescale/fs_enet/fs_enet.h (limited to 'drivers/net/ethernet/freescale/fs_enet/fs_enet.h') diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet.h b/drivers/net/ethernet/freescale/fs_enet/fs_enet.h new file mode 100644 index 000000000..cb419aef8 --- /dev/null +++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet.h @@ -0,0 +1,241 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef FS_ENET_H +#define FS_ENET_H + +#include +#include +#include +#include +#include +#include + +#include +#include + +#ifdef CONFIG_CPM1 +#include +#endif + +#if defined(CONFIG_FS_ENET_HAS_FEC) +#include + +#if defined(CONFIG_FS_ENET_MPC5121_FEC) +/* MPC5121 FEC has different register layout */ +struct fec { + u32 fec_reserved0; + u32 fec_ievent; /* Interrupt event reg */ + u32 fec_imask; /* Interrupt mask reg */ + u32 fec_reserved1; + u32 fec_r_des_active; /* Receive descriptor reg */ + u32 fec_x_des_active; /* Transmit descriptor reg */ + u32 fec_reserved2[3]; + u32 fec_ecntrl; /* Ethernet control reg */ + u32 fec_reserved3[6]; + u32 fec_mii_data; /* MII manage frame reg */ + u32 fec_mii_speed; /* MII speed control reg */ + u32 fec_reserved4[7]; + u32 fec_mib_ctrlstat; /* MIB control/status reg */ + u32 fec_reserved5[7]; + u32 fec_r_cntrl; /* Receive control reg */ + u32 fec_reserved6[15]; + u32 fec_x_cntrl; /* Transmit Control reg */ + u32 fec_reserved7[7]; + u32 fec_addr_low; /* Low 32bits MAC address */ + u32 fec_addr_high; /* High 16bits MAC address */ + u32 fec_opd; /* Opcode + Pause duration */ + u32 fec_reserved8[10]; + u32 fec_hash_table_high; /* High 32bits hash table */ + u32 fec_hash_table_low; /* Low 32bits hash table */ + u32 fec_grp_hash_table_high; /* High 32bits hash table */ + u32 fec_grp_hash_table_low; /* Low 32bits hash table */ + u32 fec_reserved9[7]; + u32 fec_x_wmrk; /* FIFO transmit water mark */ + u32 fec_reserved10; + u32 fec_r_bound; /* FIFO receive bound reg */ + u32 fec_r_fstart; /* FIFO receive start reg */ + u32 fec_reserved11[11]; + u32 fec_r_des_start; /* Receive descriptor ring */ + u32 fec_x_des_start; /* Transmit descriptor ring */ + u32 fec_r_buff_size; /* Maximum receive buff size */ + u32 fec_reserved12[26]; + u32 fec_dma_control; /* DMA Endian and other ctrl */ +}; +#endif + +struct fec_info { + struct fec __iomem *fecp; + u32 mii_speed; +}; +#endif + +#ifdef CONFIG_CPM2 +#include +#endif + +/* hw driver ops */ +struct fs_ops { + int (*setup_data)(struct net_device *dev); + int (*allocate_bd)(struct net_device *dev); + void (*free_bd)(struct net_device *dev); + void (*cleanup_data)(struct net_device *dev); + void (*set_multicast_list)(struct net_device *dev); + void (*adjust_link)(struct net_device *dev); + void (*restart)(struct net_device *dev); + void (*stop)(struct net_device *dev); + void (*napi_clear_event)(struct net_device *dev); + void (*napi_enable)(struct net_device *dev); + void (*napi_disable)(struct net_device *dev); + void (*rx_bd_done)(struct net_device *dev); + void (*tx_kickstart)(struct net_device *dev); + u32 (*get_int_events)(struct net_device *dev); + void (*clear_int_events)(struct net_device *dev, u32 int_events); + void (*ev_error)(struct net_device *dev, u32 int_events); + int (*get_regs)(struct net_device *dev, void *p, int *sizep); + int (*get_regs_len)(struct net_device *dev); + void (*tx_restart)(struct net_device *dev); +}; + +struct phy_info { + unsigned int id; + const char *name; + void (*startup) (struct net_device * dev); + void (*shutdown) (struct net_device * dev); + void (*ack_int) (struct net_device * dev); +}; + +/* The FEC stores dest/src/type, data, and checksum for receive packets. + */ +#define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */ +#define MIN_MTU 46 /* this is data size */ +#define CRC_LEN 4 + +#define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN) +#define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN) + +/* Must be a multiple of 32 (to cover both FEC & FCC) */ +#define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE + 31) & ~31) +/* This is needed so that invalidate_xxx wont invalidate too much */ +#define ENET_RX_ALIGN 16 +#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1) + +struct fs_enet_private { + struct napi_struct napi; + struct device *dev; /* pointer back to the device (must be initialized first) */ + struct net_device *ndev; + spinlock_t lock; /* during all ops except TX pckt processing */ + spinlock_t tx_lock; /* during fs_start_xmit and fs_tx */ + struct fs_platform_info *fpi; + struct work_struct timeout_work; + const struct fs_ops *ops; + int rx_ring, tx_ring; + dma_addr_t ring_mem_addr; + void __iomem *ring_base; + struct sk_buff **rx_skbuff; + struct sk_buff **tx_skbuff; + char *mapped_as_page; + cbd_t __iomem *rx_bd_base; /* Address of Rx and Tx buffers. */ + cbd_t __iomem *tx_bd_base; + cbd_t __iomem *dirty_tx; /* ring entries to be free()ed. */ + cbd_t __iomem *cur_rx; + cbd_t __iomem *cur_tx; + int tx_free; + const struct phy_info *phy; + u32 msg_enable; + struct mii_if_info mii_if; + unsigned int last_mii_status; + int interrupt; + + int oldduplex, oldspeed, oldlink; /* current settings */ + + /* event masks */ + u32 ev_napi; /* mask of NAPI events */ + u32 ev; /* event mask */ + u32 ev_err; /* error event mask */ + + u16 bd_rx_empty; /* mask of BD rx empty */ + u16 bd_rx_err; /* mask of BD rx errors */ + + union { + struct { + int idx; /* FEC1 = 0, FEC2 = 1 */ + void __iomem *fecp; /* hw registers */ + u32 hthi, htlo; /* state for multicast */ + } fec; + + struct { + int idx; /* FCC1-3 = 0-2 */ + void __iomem *fccp; /* hw registers */ + void __iomem *ep; /* parameter ram */ + void __iomem *fcccp; /* hw registers cont. */ + void __iomem *mem; /* FCC DPRAM */ + u32 gaddrh, gaddrl; /* group address */ + } fcc; + + struct { + int idx; /* FEC1 = 0, FEC2 = 1 */ + void __iomem *sccp; /* hw registers */ + void __iomem *ep; /* parameter ram */ + u32 hthi, htlo; /* state for multicast */ + } scc; + + }; +}; + +/***************************************************************************/ + +void fs_init_bds(struct net_device *dev); +void fs_cleanup_bds(struct net_device *dev); + +/***************************************************************************/ + +#define DRV_MODULE_NAME "fs_enet" +#define PFX DRV_MODULE_NAME ": " + +/***************************************************************************/ + +int fs_enet_platform_init(void); +void fs_enet_platform_cleanup(void); + +/***************************************************************************/ +/* buffer descriptor access macros */ + +/* access macros */ +#if defined(CONFIG_CPM1) +/* for a CPM1 __raw_xxx's are sufficient */ +#define __cbd_out32(addr, x) __raw_writel(x, addr) +#define __cbd_out16(addr, x) __raw_writew(x, addr) +#define __cbd_in32(addr) __raw_readl(addr) +#define __cbd_in16(addr) __raw_readw(addr) +#else +/* for others play it safe */ +#define __cbd_out32(addr, x) out_be32(addr, x) +#define __cbd_out16(addr, x) out_be16(addr, x) +#define __cbd_in32(addr) in_be32(addr) +#define __cbd_in16(addr) in_be16(addr) +#endif + +/* write */ +#define CBDW_SC(_cbd, _sc) __cbd_out16(&(_cbd)->cbd_sc, (_sc)) +#define CBDW_DATLEN(_cbd, _datlen) __cbd_out16(&(_cbd)->cbd_datlen, (_datlen)) +#define CBDW_BUFADDR(_cbd, _bufaddr) __cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr)) + +/* read */ +#define CBDR_SC(_cbd) __cbd_in16(&(_cbd)->cbd_sc) +#define CBDR_DATLEN(_cbd) __cbd_in16(&(_cbd)->cbd_datlen) +#define CBDR_BUFADDR(_cbd) __cbd_in32(&(_cbd)->cbd_bufaddr) + +/* set bits */ +#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc)) + +/* clear bits */ +#define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc)) + +/*******************************************************************/ + +extern const struct fs_ops fs_fec_ops; +extern const struct fs_ops fs_fcc_ops; +extern const struct fs_ops fs_scc_ops; + +/*******************************************************************/ + +#endif -- cgit v1.2.3